KR20180030910A - Composition for detecting potential fingerprints - Google Patents
Composition for detecting potential fingerprints Download PDFInfo
- Publication number
- KR20180030910A KR20180030910A KR1020187005361A KR20187005361A KR20180030910A KR 20180030910 A KR20180030910 A KR 20180030910A KR 1020187005361 A KR1020187005361 A KR 1020187005361A KR 20187005361 A KR20187005361 A KR 20187005361A KR 20180030910 A KR20180030910 A KR 20180030910A
- Authority
- KR
- South Korea
- Prior art keywords
- parts
- fingerprint
- composition
- potential
- cyanoacrylate
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims abstract description 100
- IJVRPNIWWODHHA-UHFFFAOYSA-N 2-cyanoprop-2-enoic acid Chemical compound OC(=O)C(=C)C#N IJVRPNIWWODHHA-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229920002545 silicone oil Polymers 0.000 claims abstract description 23
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- 125000005376 alkyl siloxane group Chemical group 0.000 claims description 8
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 claims description 6
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 6
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 claims description 6
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 5
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- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical group OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 2
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- 150000001875 compounds Chemical class 0.000 description 3
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- 230000003628 erosive effect Effects 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
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- 238000007654 immersion Methods 0.000 description 2
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- 229910010272 inorganic material Inorganic materials 0.000 description 2
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- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
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- 230000006866 deterioration Effects 0.000 description 1
- XUKFPAQLGOOCNJ-UHFFFAOYSA-N dimethyl(trimethylsilyloxy)silicon Chemical compound C[Si](C)O[Si](C)(C)C XUKFPAQLGOOCNJ-UHFFFAOYSA-N 0.000 description 1
- OYWALDPIZVWXIM-UHFFFAOYSA-N dimethyl-[3-(oxiran-2-ylmethoxy)propyl]-trimethylsilyloxysilane Chemical compound C[Si](C)(C)O[Si](C)(C)CCCOCC1CO1 OYWALDPIZVWXIM-UHFFFAOYSA-N 0.000 description 1
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 description 1
- FBZANXDWQAVSTQ-UHFFFAOYSA-N dodecamethylpentasiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C FBZANXDWQAVSTQ-UHFFFAOYSA-N 0.000 description 1
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- MZAYYDBNSRGYGH-UHFFFAOYSA-N ethenyl-[ethenyl(diethoxy)silyl]oxy-diethoxysilane Chemical compound CCO[Si](OCC)(C=C)O[Si](OCC)(OCC)C=C MZAYYDBNSRGYGH-UHFFFAOYSA-N 0.000 description 1
- BITPLIXHRASDQB-UHFFFAOYSA-N ethenyl-[ethenyl(dimethyl)silyl]oxy-dimethylsilane Chemical compound C=C[Si](C)(C)O[Si](C)(C)C=C BITPLIXHRASDQB-UHFFFAOYSA-N 0.000 description 1
- OHGXFWJXGZXTEF-UHFFFAOYSA-N ethynyl-[ethynyl(dimethyl)silyl]oxy-dimethylsilane Chemical compound C#C[Si](C)(C)O[Si](C)(C)C#C OHGXFWJXGZXTEF-UHFFFAOYSA-N 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
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- NFVSFLUJRHRSJG-UHFFFAOYSA-N hexadecamethylheptasiloxane Chemical compound C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C NFVSFLUJRHRSJG-UHFFFAOYSA-N 0.000 description 1
- HTDJPCNNEPUOOQ-UHFFFAOYSA-N hexamethylcyclotrisiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O1 HTDJPCNNEPUOOQ-UHFFFAOYSA-N 0.000 description 1
- KFWPSCHCURXRBC-UHFFFAOYSA-N hexyl-dimethyl-trimethylsilyloxysilane Chemical compound CCCCCC[Si](C)(C)O[Si](C)(C)C KFWPSCHCURXRBC-UHFFFAOYSA-N 0.000 description 1
- 239000007970 homogeneous dispersion Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
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- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 1
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- 150000002739 metals Chemical class 0.000 description 1
- GSXKFICELAZKGH-UHFFFAOYSA-N methoxymethyl 2-cyanoprop-2-enoate Chemical compound COCOC(=O)C(=C)C#N GSXKFICELAZKGH-UHFFFAOYSA-N 0.000 description 1
- JPQBRSQJGWOTGC-UHFFFAOYSA-N methyl(silyloxysilyloxy)silane Chemical compound C[SiH2]O[SiH2]O[SiH3] JPQBRSQJGWOTGC-UHFFFAOYSA-N 0.000 description 1
- SWGZAKPJNWCPRY-UHFFFAOYSA-N methyl-bis(trimethylsilyloxy)silicon Chemical compound C[Si](C)(C)O[Si](C)O[Si](C)(C)C SWGZAKPJNWCPRY-UHFFFAOYSA-N 0.000 description 1
- KKZJGLLVHKMTCM-UHFFFAOYSA-N mitoxantrone Chemical compound O=C1C2=C(O)C=CC(O)=C2C(=O)C2=C1C(NCCNCCO)=CC=C2NCCNCCO KKZJGLLVHKMTCM-UHFFFAOYSA-N 0.000 description 1
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- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 description 1
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- 239000011368 organic material Substances 0.000 description 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 1
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- IPDQIHIYQHAUCO-UHFFFAOYSA-N phenyl 2-cyanoprop-2-enoate Chemical compound N#CC(=C)C(=O)OC1=CC=CC=C1 IPDQIHIYQHAUCO-UHFFFAOYSA-N 0.000 description 1
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- ITCZEZQMUWEPQP-UHFFFAOYSA-N prop-2-enyl 2-cyanoprop-2-enoate Chemical compound C=CCOC(=O)C(=C)C#N ITCZEZQMUWEPQP-UHFFFAOYSA-N 0.000 description 1
- UVTYYXOSOUBFIW-UHFFFAOYSA-N prop-2-ynyl 2-cyanoprop-2-enoate Chemical compound N#CC(=C)C(=O)OCC#C UVTYYXOSOUBFIW-UHFFFAOYSA-N 0.000 description 1
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- 239000011347 resin Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910001961 silver nitrate Inorganic materials 0.000 description 1
- 239000010454 slate Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- 239000013008 thixotropic agent Substances 0.000 description 1
- WILBTFWIBAOWLN-UHFFFAOYSA-N triethyl(triethylsilyloxy)silane Chemical compound CC[Si](CC)(CC)O[Si](CC)(CC)CC WILBTFWIBAOWLN-UHFFFAOYSA-N 0.000 description 1
- BONURZYUESPFGT-UHFFFAOYSA-N trimethyl-[methyl-[methyl-bis(trimethylsilyloxy)silyl]oxysilyl]oxysilane Chemical compound [SiH](C)(O[Si](C)(C)C)O[Si](C)(O[Si](C)(C)C)O[Si](C)(C)C BONURZYUESPFGT-UHFFFAOYSA-N 0.000 description 1
- XAASNKQYFKTYTR-UHFFFAOYSA-N tris(trimethylsilyloxy)silicon Chemical compound C[Si](C)(C)O[Si](O[Si](C)(C)C)O[Si](C)(C)C XAASNKQYFKTYTR-UHFFFAOYSA-N 0.000 description 1
- ZQTYRTSKQFQYPQ-UHFFFAOYSA-N trisiloxane Chemical compound [SiH3]O[SiH2]O[SiH3] ZQTYRTSKQFQYPQ-UHFFFAOYSA-N 0.000 description 1
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Images
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- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
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- A61B5/117—Identification of persons
- A61B5/1171—Identification of persons based on the shapes or appearances of their bodies or parts thereof
- A61B5/1172—Identification of persons based on the shapes or appearances of their bodies or parts thereof using fingerprinting
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F122/00—Homopolymers of compounds having one or more unsaturated aliphatic radicals each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides or nitriles thereof
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- C08F122/32—Alpha-cyano-acrylic acid; Esters thereof
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
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- C08F2/48—Polymerisation initiated by wave energy or particle radiation by ultraviolet or visible light
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
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- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
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- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N2021/6439—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" with indicators, stains, dyes, tags, labels, marks
Abstract
본 발명의 잠재 지문 검출용 조성물은, 2-시아노아크릴레이트와 실리콘 오일을 함유하고, 실리콘 오일의 함유량은, 2-시아노아크릴레이트의 함유량을 100질량부로 한 경우에 700 내지 9000질량부이다. 본 발명의 잠재 지문 검출용 조성물은, 추가로 형광 염료, 안정제 등을 함유할 수 있다.The composition for detecting potential fingerprints of the present invention contains 2-cyanoacrylate and a silicone oil, and the content of the silicone oil is 700 to 9000 parts by mass when the content of 2-cyanoacrylate is 100 parts by mass . The composition for detecting potential fingerprints of the present invention may further contain a fluorescent dye, a stabilizer, and the like.
Description
본 발명은, 감식 분야에 있어서의 잠재 지문의 검출에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to detection of a potential fingerprint in the field of authentication.
잠재 지문은, 손가락 끝(指頭)으로부터 분비된 물질이, 범죄 현장에 유류된 물품(이하, 「검체」라고도 함)에 부착되었을 때, 피부의 융기된 부분(피부 소릉(少稜). 이하, 이것을 「지문 융선(隆線)」이라고도 함)의 형태로 인상(印象)된 것이다. 손가락 끝으로부터 분비되는 물질에는, 주성분인 물 외에도, 염화나트륨, 염화칼륨, 염화칼슘 등의 무기 성분이나, 락트산, 아미노산류, 요산, 지질, 단백질, 비타민류 등이 포함되어 있다. 잠재 지문은, 그 자체의 상태에서는 식별할 수 없으므로, 감식 시에는, 손가락 끝 분비 성분과 검출용 물질과의 화학 반응 또는 물리적 흡착 반응이 이용되어 왔다. 구체적으로는, 알루미늄, 산화철, 백운모, 카올린 등을 포함하는 미분말을, 지문 융선의 성분인 물이나 지질에 물리적 흡착시켜 시각화하는 고체법, 닌히드린, 질산은, DFO(1,8-디아자플루오렌-9-온) 등을 포함하는 용액을 사용하여, 지질과, 아미노산, 염분 등을 반응시켜 정색시키는 방법, 또는 물이나 지질에, 2-시아노아크릴레이트를 흡착, 반응시키는 액체법, 그리고 요오드 가스, 2-시아노아크릴레이트 가스 등을, 지질과 반응시키는 기체법이 있다.The potential fingerprint is a portion of the skin that has been raised from the fingertip when the substance secreted from the fingertip is attached to an article circulated in a crime scene (hereinafter also referred to as a "specimen"). This is also referred to as "fingerprint ridge"). The substances secreted from the fingertip include inorganic components such as sodium chloride, potassium chloride and calcium chloride, lactic acid, amino acids, uric acid, lipids, proteins, vitamins and the like in addition to water as the main component. Since the potential fingerprint can not be identified in its own state, a chemical reaction or a physical adsorption reaction between the fingertip secretion component and the detection substance has been used at the time of identification. Specifically, a solid method in which a fine powder including aluminum, iron oxide, muscovite, kaolin, etc. is visualized by physically adsorbing water or lipid, which is a component of fingerprint ridges, in a solid state, ninhydrin, silver nitrate, DFO (1,8-diazafluorene -9-one), a method of coloring a lipid by reacting with an amino acid, a salt or the like, a liquid method of adsorbing and reacting 2-cyanoacrylate to water or lipid, Gas, 2-cyanoacrylate gas and the like are reacted with lipid.
상기 중, 2-시아노아크릴레이트를 사용한 액체법에 의해 잠재 지문을 검출하는 경우에는, 2-시아노아크릴레이트를 포함하는 용액이 사용되고 있다. 예를 들어, 특허문헌 1에는, 2-시아노아크릴레이트, 로다민 6G, 트리클로로에탄 및 클로로포름을 포함하는 조성물이 개시되어 있으며, 트리클로로에탄 또는 클로로포름 대신에, 탄화수소, 기타 할로겐화탄화수소, 에테르류, 에스테르류, 알코올류, 케톤 등의 유기 용매를 사용해도 되는 취지의 기재가 있다.When a latent fingerprint is detected by the liquid method using 2-cyanoacrylate, a solution containing 2-cyanoacrylate is used. For example, Patent Document 1 discloses a composition comprising 2-cyanoacrylate, rhodamine 6G, trichloroethane, and chloroform. It is also possible to use a hydrocarbon, other halogenated hydrocarbon, ether , Esters, alcohols, ketones and the like may be used.
2-시아노아크릴레이트를 포함하는 용액은, 잠재 지문의 검출에 바람직하다. 그러나, 부착되어 있는 잠재 지문은, 검체의 구성 부재(이하, 「지문 지지 부재」라고도 함)의 표면 형상에 의존하고 있기 때문에, 지문 지지 부재의 표면에, 미세한 볼록부(돌기부) 및 오목부가 연속된 부분이 있을 경우에는, 볼록부의 선단에만 손가락 끝 분비 성분이 잔존하고 있게 된다. 이러한 검체에 대하여, 특허문헌 1의 조성물을 사용하면, 손가락 끝 분비 성분이 볼록부부터 오목부로 유입되고, 잠재 지문이 변형 또는 소실되어, 그 검출이 불충분해지는 경우가 있었다. 또한, 특허문헌 1의 조성물에 포함되는 유기 용제 중에는, 지문 지지 부재의 구성 재료의 용해, 팽윤 또는 변질을 야기하는 것이 있어, 검체가 한정되는 경우가 있었다.Solutions containing 2-cyanoacrylate are preferred for the detection of potential fingerprints. However, since the attached potential fingerprint depends on the surface shape of the constituent member of the specimen (hereinafter also referred to as " fingerprint supporting member "), the surface of the fingerprint supporting member is provided with fine convex portions The fingertip secretion component remains only at the tip of the convex portion. With respect to such a specimen, when the composition of Patent Document 1 is used, the fingertip secretion component flows into the concave portion from the convex portion, and the potential fingerprint is deformed or lost, so that the detection is sometimes insufficient. In addition, the organic solvent contained in the composition of Patent Document 1 may cause dissolution, swelling, or alteration of the constituent material of the fingerprint supporting member, so that the sample may be limited.
본 발명의 과제는, 손가락 끝 분비 성분을 포함하는 잠재 지문이, 평탄한 지문 지지 부재의 표면에 형성되어 있는 경우뿐만 아니라, 최표면에 볼록부 또는 오목부를 갖는 지문 지지 부재에 있어서의 볼록부의 표면에만 형성되어 있는 경우에도, 잠재 지문의 변형 또는 소실이 억제되어, 잠재 지문의 패턴이 유지되고, 광 조사에 의해 잠재 지문의 검출을 효율적으로 행할 수 있는 조성물을 제공하는 것이다.SUMMARY OF THE INVENTION It is an object of the present invention to provide a fingerprint sensor that not only has a potential fingerprint containing a finger tip secretion component formed on the surface of a flat fingerprint supporting member but also has a feature that only the surface of the fingerprint holding member having a convex portion or a concave portion on the outermost surface The present invention provides a composition capable of suppressing the deformation or disappearance of the potential fingerprint and maintaining the pattern of the potential fingerprint and efficiently detecting the potential fingerprint by light irradiation.
본 발명자들은, 2-시아노아크릴레이트를 함유하는 조성물을 사용한 감식 작업에 있어서, 잠재 지문의 변형 또는 소실을 억제하고, 잠재 지문의 패턴이 유지되는 액체 조성물에 대해서, 예의 검토한 결과, 본 발명을 완성하기에 이르렀다.The present inventors have intensively studied a liquid composition in which the pattern of latent fingerprints is retained while suppressing the deformation or disappearance of the potential fingerprint in the identification work using the composition containing 2-cyanoacrylate. As a result, .
즉, 본 발명은, 2-시아노아크릴레이트와 실리콘 오일을 함유하고, 실리콘 오일의 함유량은, 2-시아노아크릴레이트의 함유량을 100질량부로 한 경우에 700 내지 9000질량부인 잠재 지문 검출용 조성물이다.That is, the present invention relates to a composition for detecting potential fingerprints, comprising 2-cyanoacrylate and a silicone oil, wherein the content of the silicone oil is 700 to 9000 parts by mass when the content of 2-cyanoacrylate is 100 parts by mass to be.
본 발명의 잠재 지문 검출용 조성물은, 추가로 형광 염료, 안정제 등을 함유할 수 있다.The composition for detecting potential fingerprints of the present invention may further contain a fluorescent dye, a stabilizer, and the like.
본 발명에 따르면, 잠재 지문 검출용 조성물을 검체에 접촉시킴으로써, 잠재 지문을 구성하는 손가락 끝 분비 성분의 용해 또는 이동, 지문 지지 부재의 용해, 팽윤 또는 변질을 일으키는 일없이, 잠재 지문을 구성하는 손가락 끝 분비 성분에 조성물이 흡착되고, 경화되어 백화하므로, 높은 정밀도로, 잠재 지문의 패턴을 얻을 수 있다. 지문 지지 부재의 색에 따라서는, 형광 염료를 함유하는 잠재 지문 검출용 조성물을 사용하여, 형광 염료를 포함하는 백화 부분을 형성한 후, 가시광 등을 조사함으로써, 잠재 지문을 반영하는 발광 패턴을 얻을 수 있다.According to the present invention, by contacting the composition for detecting a potential fingerprint with the specimen, it is possible to prevent the dissolution or movement of the fingertip-releasing component constituting the potential fingerprint, the fingers that constitute the potential fingerprint without causing dissolution, swelling, Since the composition is adsorbed to the terminal secretion component and cured to whiten, a latent fingerprint pattern can be obtained with high precision. Depending on the color of the fingerprint supporting member, a composition for detecting a potential fingerprint containing a fluorescent dye is used to form a whitish portion including a fluorescent dye, and then a visible light or the like is irradiated to obtain a light emission pattern reflecting the potential fingerprint .
본 발명에 있어서는, 손가락 끝 분비 성분을 포함하는 잠재 지문이, 평탄한 지문 지지 부재의 표면에 형성되어 있는 경우뿐만 아니라, 미세한 볼록부 및 오목부가 연속된 표면을 갖는 지문 지지 부재(다공질 부재 등)에 있어서의 볼록부의 표면에만 형성되어 있으며, 예를 들어 잠재 지문의 패턴이 도중에 끊어지게 된 경우에도, 실리콘 오일에 의한 지문 지지 부재의 용해, 팽윤 및 변질이 없고, 잔존하는 잠재 지문의 변형 또는 소실이 억제된다. 따라서, 지문 지지 부재의 표면 형상에 의존하지 않고, 잠재 지문의 패턴이 유지되어, 잠재 지문의 검출을 효율적으로 행할 수 있다.In the present invention, not only when the potential fingerprint containing the fingertip component is formed on the surface of the flat fingerprint supporting member but also when the fingerprint supporting member (porous member or the like) having fine convex portions and concave portions have continuous surfaces Swelling and deterioration of the fingerprint supporting member due to the silicone oil and the deformation or loss of the remaining potential fingerprint is prevented even when the pattern of the potential fingerprint is broken on the way, . Therefore, the pattern of the potential fingerprint can be maintained without depending on the surface shape of the fingerprint supporting member, and the potential fingerprint can be efficiently detected.
도 1은, 실시예 1의 평가용 시료인, 그 표면에 지촉한 후의 벽돌을 나타내는 외관 화상이다.
도 2는, 실시예 1의 조성물을 접촉시킨 후, 잠재 지문 부착 벽돌에 가시광을 조사하여 얻어진 형광 지문을 나타내는 화상이다.
도 3은, 실시예 13의 평가용 시료인, 그 표면에 지촉한 후의 자기 티켓의 이면(자기면)을 나타내는 외관 화상이다.
도 4는, 실시예 13의 조성물을 접촉시킨 후, 잠재 지문 부착 자기 티켓에 가시광을 조사하여 얻어진 형광 지문을 나타내는 화상이다.
도 5는, 실시예 13의 평가용 시료인, 그 표면에 지촉한 후의 폴리에틸렌 주머니를 나타내는 외관 화상이다.
도 6은, 실시예 13의 조성물을 접촉시킨 후, 잠재 지문 부착 폴리에틸렌 주머니에 가시광을 조사하여 얻어진 형광 지문을 나타내는 화상이다.Fig. 1 is an appearance image showing a brick after touching its surface, which is an evaluation sample of Example 1. Fig.
Fig. 2 is an image showing a fluorescent fingerprint obtained by irradiating visible light to a brick with potential fingerprint after contacting with the composition of Example 1. Fig.
Fig. 3 is an appearance image showing the back surface (magnetic surface) of a magnetic ticket after touching its surface, which is an evaluation sample of Example 13. Fig.
Fig. 4 is an image showing a fluorescent fingerprint obtained by irradiating visible light with a latent fingerprint attached magnetic ticket after contacting the composition of Example 13; Fig.
Fig. 5 is an appearance image showing a polyethylene bag after touching the surface thereof, which is an evaluation sample of Example 13. Fig.
6 is an image showing a fluorescent fingerprint obtained by contacting a composition of Example 13 with a visible light to a polyethylene bag with a potential fingerprint.
이하, 본 발명을 상세하게 설명한다.Hereinafter, the present invention will be described in detail.
본 발명의 잠재 지문 검출용 조성물은, 2-시아노아크릴레이트와 실리콘 오일을, 특정한 비율로 함유하는 액체 조성물이다.The composition for detecting potential fingerprints of the present invention is a liquid composition containing 2-cyanoacrylate and silicone oil in a specific ratio.
상기 2-시아노아크릴레이트는, 특별히 한정되지 않고, 시아노아크릴산(시클로)알킬에스테르, 시아노아크릴산아릴에스테르, 시아노아크릴산알케닐에스테르, 시아노아크릴산알키닐에스테르, 시아노아크릴산알콕시알킬에스테르, 시아노아크릴산할로알킬에스테르, 시아노아크릴산할로알콕시알킬에스테르 등을 사용할 수 있다. 본 발명에 있어서 사용되는 2-시아노아크릴레이트는, 1종만이어도 되고, 2종 이상의 조합이어도 된다.The 2-cyanoacrylate is not particularly limited, and examples thereof include cyanoacrylic acid (cyclo) alkyl ester, cyanoacrylic acid aryl ester, cyanoacrylic acid alkenyl ester, cyanoacrylic acid alkynyl ester, cyanoacrylic acid alkoxyalkyl ester, Cyanoacrylic acid haloalkyl ester, cyanoacrylic acid haloalkoxyalkyl ester, and the like can be used. The 2-cyanoacrylates to be used in the present invention may be either one type alone or a combination of two or more types.
상기 시아노아크릴산알킬에스테르로서는, 메틸-2-시아노아크릴레이트, 에틸-2-시아노아크릴레이트, n-프로필-2-시아노아크릴레이트, 이소프로필-2-시아노아크릴레이트, n-부틸-2-시아노아크릴레이트, 이소부틸-2-시아노아크릴레이트, n-헥실-2-시아노아크릴레이트, n-옥틸-2-시아노아크릴레이트, 2-에틸헥실-2-시아노아크릴레이트, 시클로헥실-2-시아노아크릴레이트 등을 들 수 있다. 이들 중, 메틸-2-시아노아크릴레이트, 에틸-2-시아노아크릴레이트, n-프로필-2-시아노아크릴레이트 및 이소프로필-2-시아노아크릴레이트가 바람직하다.Examples of the cyanoacrylic acid alkyl ester include methyl 2-cyanoacrylate, ethyl 2-cyanoacrylate, n-propyl-2-cyanoacrylate, isopropyl- 2-cyanoacrylate, n-octyl-2-cyanoacrylate, 2-ethylhexyl-2-cyanoacrylate, Cyclohexyl-2-cyanoacrylate, and the like. Of these, methyl-2-cyanoacrylate, ethyl-2-cyanoacrylate, n-propyl-2-cyanoacrylate and isopropyl-2-cyanoacrylate are preferred.
상기 시아노아크릴산아릴에스테르로서는, 페닐-2-시아노아크릴레이트, 벤질-2-시아노아크릴레이트 등을 들 수 있다.Examples of the cyanoacrylic acid aryl esters include phenyl-2-cyanoacrylate and benzyl-2-cyanoacrylate.
상기 시아노아크릴산알케닐에스테르로서는, 알릴-2-시아노아크릴레이트 등을 들 수 있다.Examples of the cyanoacrylate alkenyl ester include allyl-2-cyanoacrylate.
상기 시아노아크릴산알키닐에스테르로서는, 프로파르길-2-시아노아크릴레이트 등을 들 수 있다.Examples of the alkynyl cyanoacrylate esters include propargyl-2-cyanoacrylate.
상기 시아노아크릴산알콕시알킬에스테르로서는, 메톡시메틸-2-시아노아크릴레이트, 메톡시에틸-2-시아노아크릴레이트, 메톡시부틸-2-시아노아크릴레이트, 에톡시에틸-2-시아노아크릴레이트 등을 들 수 있다.Examples of the cyanoacrylate alkoxyalkyl esters include methoxymethyl-2-cyanoacrylate, methoxyethyl-2-cyanoacrylate, methoxybutyl-2-cyanoacrylate, ethoxyethyl- Acrylate, and the like.
상기 시아노아크릴산할로알콕시알킬에스테르로서는, 2-클로로에틸-2-시아노아크릴레이트, 2-클로로에톡시에틸-2-시아노아크릴레이트, 2,2,2-트리플루오로에틸-2-시아노아크릴레이트 등을 들 수 있다.Examples of the cyanoacrylate haloalkoxyalkyl ester include 2-chloroethyl-2-cyanoacrylate, 2-chloroethoxyethyl-2-cyanoacrylate, 2,2,2- And cyano acrylate.
상기 2-시아노아크릴레이트로서는, 시아노아크릴산알킬에스테르가 바람직하고, 알킬부의 탄소 원자수가 1 내지 3인 시아노아크릴산알킬에스테르가 특히 바람직하다.As the 2-cyanoacrylate, a cyanoacrylic acid alkyl ester is preferable, and a cyanoacrylic acid alkyl ester having 1 to 3 carbon atoms in the alkyl portion is particularly preferable.
상기 실리콘 오일은, 1 기압 및 25℃에 있어서 액체라면, 특별히 한정되지 않고, 비변성의 실리콘 오일 및 변성 실리콘 오일 중 어느 것을 사용해도 된다. 또한, 본 발명의 잠재 지문 검출용 조성물에 포함되는 실리콘 오일은, 1종만을 포함하는 것이어도 되고, 2종 이상을 포함하는 것이어도 된다.The silicone oil is not particularly limited as long as it is a liquid at 1 atm and 25 캜, and may be any of unmodified silicone oil and modified silicone oil. In addition, the silicone oil contained in the composition for detecting potential fingerprints of the present invention may contain only one kind or two or more kinds.
상기 실리콘 오일은, 쇄상 화합물 및 환상 화합물 중 어느 것이든 된다.The silicone oil is either a chain compound or a cyclic compound.
쇄상 화합물로서는, 1,1,3,3-테트라메틸디실록산, 1,3-디에틸테트라메틸디실록산, 1,1,3,3-테트라이소프로필디실록산, 펜타메틸디실록산, 헥사메틸디실록산, 헥사에틸디실록산, 펜타메틸헥실디실록산, 1,3-디옥틸테트라메틸디실록산, 1,1,1,5,5,5-헥사메틸트리실록산, 1,1,3,3,5,5-헥사메틸트리실록산, 1,1,1,3,5,5,5-헵타메틸트리실록산, 옥타메틸트리실록산, 헵타메틸헥실트리실록산, 헵타메틸헵틸트리실록산, 헵타메틸옥틸트리실록산, 1,1,3,3,5,5,7,7-옥타메틸테트라실록산, 데카메틸테트라실록산, 도데카메틸펜타실록산, 테트라데카메틸헥사실록산, 헥사데카메틸헵타실록산, 옥타데카메틸옥타실록산, 에이코사메틸노나실록산, 도코사메틸데카실록산, 트리스(트리메틸실록시)실란, 트리스(트리메틸실록시메틸)실란, 테트라키스(트리메틸실록시)실란 등의 알킬실록산; 헥사비닐디실록산, (3-글리시독시프로필)펜타메틸디실록산, 1,1,3,3-테트라에톡시-1,3-디메틸디실록산, 1,3-비스(글리시독시프로필)테트라메틸디실록산, 1,3-비스(히드록시부틸)테트라메틸디실록산, 1,3-비스(히드록시프로필)테트라메틸디실록산, 1,3-비스(트리메틸실록시)-1,3-디메틸디실록산, 1,3-디알릴테트라키스(트리메틸실록시)디실록산, 1,3-디알릴테트라메틸디실록산, 1,3-디에틸테트라메틸디실록산, 1,3-디에티닐테트라메틸디실록산, 1,3-디메틸테트라메톡시디실록산, 1,3-디옥틸테트라메틸디실록산, 1,3-디비닐테트라에톡시디실록산, 1,3-디비닐테트라메틸디실록산, 1-알릴-1,1,3,3-테트라메틸디실록산, 디비닐테트라키스(트리메틸실록시)디실록산, 트리스(트리메틸실록시비닐)실란, 1,5-디비닐헥사메틸트리실록산, 2-[메톡시(폴리에틸렌옥시)프로필]헵타메틸트리실록산, 3-[히드록시(폴리에틸렌옥시)프로필]헵타메틸트리실록산, 3-옥틸헵타메틸트리실록산 등의 변성 알킬 실록산 등을 들 수 있다.Examples of the chain compound include 1,1,3,3-tetramethyldisiloxane, 1,3-diethyltetramethyldisiloxane, 1,1,3,3-tetraisopropyldisiloxane, pentamethyldisiloxane, hexamethyldi Siloxane, hexaethyldisiloxane, pentamethylhexyldisiloxane, 1,3-dioctyltetramethyldisiloxane, 1,1,1,5,5,5-hexamethyltrisiloxane, 1,1,3,3,5 , 5-hexamethyltrisiloxane, 1,1,1,3,5,5,5-heptamethyltrisiloxane, octamethyltrisiloxane, heptamethylhexyltrisiloxane, heptamethylheptyltrisiloxane, heptamethyloctyltri Siloxane, 1,1,3,3,5,5,7,7-octamethyltetrasiloxane, decamethyltetrasiloxane, dodecamethylpentasiloxane, tetradecamethylhexasiloxane, hexadecamethylheptasiloxane, octadecamethyl octa (Alkylsiloxane) silane such as siloxane, eicosamethylnonosiloxane, docosamethyldecasiloxane, tris (trimethylsiloxy) silane, tris (trimethylsiloxymethyl) silane and tetrakis mountain; (3-glycidoxypropyl) pentamethyldisiloxane, 1,1,3,3-tetraethoxy-1,3-dimethyldisiloxane, 1,3-bis (glycidoxypropyl) tetra (Hydroxyethyl) tetramethyldisiloxane, 1,3-bis (hydroxypropyl) tetramethyldisiloxane, 1,3-bis (trimethylsiloxy) -1,3-dimethyl (Trimethylsiloxy) disiloxane, 1,3-diallyltetramethyldisiloxane, 1,3-diethyltetramethyldisiloxane, 1,3-diethynyltetramethyldi Siloxane, 1,3-dimethyltetramethoxydisiloxane, 1,3-dioctyltetramethyldisiloxane, 1,3-divinyltetraethoxydisiloxane, 1,3-divinyltetramethyldisiloxane, 1-allyl- (Trimethylsiloxy) silane, 1,5-divinylhexamethyltrisiloxane, 2- [methoxy (methylsiloxy) silane, (Polyethyleneoxy) propyl] heptamate Trisiloxane, and the like can be mentioned 3- [hydroxy (polyethylene oxy) propyl] cyclohepta methyl trisiloxane, modified alkyl siloxane, such as 3-octyl-hepta methyl trisiloxane.
또한, 환상 화합물로서는, 헥사메틸시클로트리실록산, 옥타메틸시클로테트라실록산, 데카메틸시클로펜타실록산, 도데카메틸시클로헥사실록산, 테트라데카메틸시클로헵타실록산, 헥사데카메틸시클로옥타실록산, 옥타데카메틸시클로노나실록산, 에이코사메틸시클로데카실록산 등의 시클로알킬실록산; 비스[(비시클로헵테닐)에틸]테트라메틸디실록산, 비스-2-[3,4-(에폭시시클로헥실)에틸]테트라메틸디실록산 등의 변성 시클로알킬실록산 등을 들 수 있다.Examples of the cyclic compound include hexamethylcyclotrisiloxane, octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, tetradecamethylcycloheptosiloxane, hexadecamethylcyclooctasiloxane, octadecamethylcyclo-nona Cycloalkylsiloxanes such as siloxane and eicosamethylcyclodecasiloxane; And modified cycloalkylsiloxanes such as bis [(bicycloheptenyl) ethyl] tetramethyldisiloxane and bis-2- [3,4- (epoxycyclohexyl) ethyl] tetramethyldisiloxane.
상기 실리콘 오일로서는, 지문 지지 부재의 구성 재료 및 표면 형상에 의존하지 않고, 잠재 지문의 변형 또는 소실이 억제되어, 잠재 지문의 패턴이 유지되고, 잠재 지문 위에 안정된 백화 부분을 형성하여, 잠재 지문을 용이하게 검출 가능한 점에서, 알킬실록산이 바람직하고, 규소 원자수가 2 내지 10인 알킬실록산이 보다 바람직하고, 규소 원자수가 2 내지 5인 알킬실록산이 특히 바람직하다. 후술하는 바와 같이, 본 발명의 잠재 지문 검출용 조성물을 검체에 접촉시키는 방법은, 분무, 침지 등으로 할 수 있고, 검체의 성상에 따른 점도를 갖는 조성물을 사용할 수 있으므로, 규소 원자수가 2 내지 5인 알킬실록산의 2종 이상, 또는 규소 원자수가 2 내지 5인 알킬실록산과, 규소 원자수가 6 이상인 알킬실록산 또는 고점도의 다른 실리콘 오일을 조합한 것으로 할 수도 있다. 또한, 상기 실리콘 오일은, 조성물에 있어서의 함유 비율이 높은 성분이기 때문에, 1 기압에 있어서의 비점이, 바람직하게는 90℃ 내지 300℃, 보다 바람직하게는 90℃ 내지 250℃의 범위에 있는 실리콘 오일을 포함하는 조성물이면, 잠재 지문을 보다 신속하게 검출할 수 있다.As the silicone oil, deformation or disappearance of a potential fingerprint is suppressed without depending on the constituent material and surface shape of the fingerprint supporting member, a pattern of the potential fingerprint is maintained, a stable whitish portion is formed on the potential fingerprint, From the viewpoint of easily detecting, alkylsiloxane is preferable, alkylsiloxane having 2 to 10 silicon atoms is more preferable, and alkylsiloxane having 2 to 5 silicon atoms is particularly preferable. As described later, the method of contacting the sample for potential fingerprint detection of the present invention with the sample can be performed by spraying, immersion, etc., and a composition having viscosity according to the property of the specimen can be used. Or an alkyl siloxane having 2 to 5 silicon atoms and an alkyl siloxane having 6 or more silicon atoms or a silicone oil having a high viscosity may be combined with each other. Further, since the silicone oil has a high content ratio in the composition, the silicone oil preferably has a boiling point at 1 atm, preferably 90 to 300 캜, more preferably 90 to 250 캜 If the composition contains oil, the potential fingerprint can be detected more quickly.
본 발명의 잠재 지문 검출용 조성물에 포함되는 실리콘 오일의 함유량은, 잠재 지문의 변형 또는 소실이 억제되어, 잠재 지문의 패턴이 유지되고, 잠재 지문 위에 안정된 백화 부분을 형성하여, 잠재 지문을 용이하게 검출 가능한 점에서, 2-시아노아크릴레이트의 함유량을 100질량부로 한 경우에, 700 내지 9000질량부이며, 바람직하게는 1000 내지 5000질량부, 보다 바람직하게는 1500 내지 4500질량부이다.The content of the silicone oil contained in the composition for detecting potential fingerprints of the present invention is such that the pattern of latent fingerprints is retained by suppressing deformation or disappearance of the potential fingerprints and forms a stable whitish portion on the potential fingerprints, When the content of 2-cyanoacrylate is 100 parts by mass, it is 700 to 9000 parts by mass, preferably 1000 to 5000 parts by mass, and more preferably 1500 to 4500 parts by mass.
본 발명의 잠재 지문 검출용 조성물은, 상기 필수 성분에 더하여, 추가로 다른 성분을 함유할 수 있고, 예를 들어 형광 염료, 안정제, 증점제, 요변성 부여제, 향료 등을 함유할 수 있다.The composition for detecting potential fingerprints of the present invention may further contain other components in addition to the above essential components and may contain, for example, fluorescent dyes, stabilizers, thickeners, thixotropic agents, perfumes and the like.
2-시아노아크릴레이트의 중합에 의해 형성된 경화부는, 통상, 백색이기 때문에, 지문 지지 부재의 색에 따라서는, 형광 염료를 함유하는 잠재 지문 검출용 조성물을 사용하는 것이 바람직하다.Since the cured portion formed by polymerization of 2-cyanoacrylate is usually white, it is preferable to use a composition for detecting a potential fingerprint containing a fluorescent dye depending on the color of the fingerprint supporting member.
상기 형광 염료는, 상기 2-시아노아크릴레이트의 단독 중합체의 분말 중에 분산시켜 얻어진 시료에, 400 내지 800nm 범위의 파장을 갖는 전자파(가시광선)를 조사하여 형광을 발하는 것이면, 특별히 한정되지 않는다. 본 발명에 있어서는, 2-시아노아크릴레이트의 중합체 중에 있어서 안정되고, 형광 감도가 높은 점에서, 안트라퀴논계 염료, 나프탈이미드계 염료 등을 사용할 수 있다. 본 발명에 있어서 사용되는 형광 염료는, 1종만이어도 되고, 2종 이상의 조합이어도 된다.The fluorescent dye is not particularly limited as long as it emits fluorescence by irradiating electromagnetic waves (visible light) having a wavelength in the range of 400 to 800 nm to a sample obtained by dispersing the fluorescent dye in the homopolymer powder of the 2-cyanoacrylate. In the present invention, an anthraquinone-based dye, a naphthalimide-based dye, and the like can be used because they are stable in the polymer of 2-cyanoacrylate and have high fluorescence sensitivity. The fluorescent dyes to be used in the present invention may be one kind alone, or two or more kinds thereof may be combined.
상기 안트라퀴논계 염료로서는, 아미노안트라퀴논, 아미노히드록시안트라퀴논, 디아미노안트라퀴논, 디히드록시안트라퀴논, 디아미노디히드록시안트라퀴논 등을 들 수 있다. 이들 중, 2-페녹시-1-아미노-4-히드록시안트라센-9,10-디온(SOLVENT RED 146) 등의 아미노히드록시안트라퀴논이 바람직하다.Examples of the anthraquinone dyes include amino anthraquinone, aminohydroxy anthraquinone, diamino anthraquinone, dihydroxy anthraquinone, and diamino dihydroxy anthraquinone. Of these, aminohydroxyanthraquinones such as 2-phenoxy-1-amino-4-hydroxyanthracene-9,10-dione (SOLVENT RED 146) are preferable.
상기 나프탈이미드계 염료로서는, 알킬나프탈이미드, 알콕시나프탈이미드, 알콕시알킬나프탈이미드, 아미노나프탈이미드, 알킬아미노나프탈이미드, 니트로나프탈이미드, 할로겐화나프탈이미드, 카르보닐나프탈이미드, 페닐티오나프탈이미드, 시아노나프탈이미드, 히드록시나프탈이미드 등을 들 수 있다. 이들 중, 2-부틸-6-(부틸아미노)-1H-벤즈[de]이소퀴놀린-1,3(2H)-디온(SOLVENT YELLOW 43) 등의 알킬아미노나프탈이미드가 바람직하다.Examples of the naphthalimide dyes include alkyl naphthalimides, alkoxynaphthalimides, alkoxyalkylnaphthalimides, aminonaphthalimides, alkylaminonaphthalimides, nitronaphthalimides, halogenated naphthalenes, Imidodicarbonylnaphthalimide, phenylthionaphthalimide, cyanonaphthalimide, hydroxynaphthalimide, and the like can be given. Of these, alkylaminonaphthalimides such as 2-butyl-6- (butylamino) -1H-benz [de] isoquinoline-1,3 (2H) -dione (SOLVENT YELLOW 43) are preferred.
상기 형광 염료의 실리콘 오일에 대한 용해성은, 특별히 한정되지 않지만, 실리콘 오일에 가용인 형광 염료를 사용하는 것이 바람직하다. 또한, 실리콘 오일에 불용인 형광 염료를 사용하는 경우, 그 평균 입경은, 바람직하게는 0.1㎛ 이하이다.The solubility of the fluorescent dye in the silicone oil is not particularly limited, but it is preferable to use a fluorescent dye soluble in silicone oil. When a fluorescent dye insoluble in silicone oil is used, the average particle size thereof is preferably 0.1 mu m or less.
본 발명의 잠재 지문 검출용 조성물이 형광 염료를 함유하는 경우, 그 함유량은, 광 조사에 의해, 충분한 발광 강도가 얻어지고, 잠재 지문을 용이하게 검출 가능한 점에서, 2-시아노아크릴레이트의 함유량을 100질량부로 한 경우에 바람직하게는 0.05질량부 이상이며, 보다 바람직하게는 0.1 내지 6.0질량부, 더욱 바람직하게는 0.2 내지 3.0질량부, 특히 바람직하게는 0.3 내지 1.0질량부이다.When the composition for detecting potential fingerprints of the present invention contains a fluorescent dye, the content thereof is such that the sufficient light emission intensity can be obtained by light irradiation and the potential fingerprint can be easily detected. The content of 2-cyanoacrylate Is preferably 0.05 part by mass or more, more preferably 0.1 to 6.0 parts by mass, still more preferably 0.2 to 3.0 parts by mass, and particularly preferably 0.3 to 1.0 part by mass.
상기 안정제는, 조성물 중에 있어서의 2-시아노아크릴레이트의 중합을 억제하는 작용을 갖는 것이며, 아황산 가스, 메탄술폰산, 에탄술폰산, HBF4, BF3 에테르 착염, BF3 아세트산착염, 히드로퀴논, 히드로퀴논모노메틸에테르, 2,6-디-tert-부틸-p-크레졸, 트리플루오로메탄술폰산, 이황화탄소 등을 사용할 수 있다.The stabilizer has an action of inhibiting the polymerization of 2-cyanoacrylate in the composition, and the stabilizer is a compound having a function of inhibiting the polymerization of 2-cyanoacrylate in the composition, and the stabilizer is a sulfurous acid gas, methanesulfonic acid, ethanesulfonic acid, HBF 4 , BF 3 ether complex salt, BF 3 acetic acid complex salt, Methyl ether, 2,6-di-tert-butyl-p-cresol, trifluoromethanesulfonic acid, carbon disulfide and the like.
본 발명의 잠재 지문 검출용 조성물이 안정제를 함유하는 경우, 그 함유량은, 2-시아노아크릴레이트의 함유량을 100질량부로 한 경우에, 0.0001 내지 1질량부이며, 바람직하게는 0.001 내지 0.1질량부, 보다 바람직하게는 0.001 내지 0.05질량부이다.When the composition for detecting potential fingerprints of the present invention contains a stabilizer, the content thereof is 0.0001 to 1 part by mass, preferably 0.001 to 0.1 part by mass when the content of 2-cyanoacrylate is 100 parts by mass , And more preferably 0.001 to 0.05 part by mass.
본 발명의 잠재 지문 검출용 조성물은, 균일 용액 또는 균일 분산액으로 할 수 있고, 그 점도는, 바람직하게는 0.5 내지 20mPa·s, 보다 바람직하게는 0.5 내지 10mPa·s이다. 조성물의 점도는, JIS K 6833-15.4.1 b) 방법 2에 준하는 방법에 의해, 온도 25℃에서 측정된 것이다.The composition for detecting potential fingerprints of the present invention can be a homogeneous solution or a homogeneous dispersion, and its viscosity is preferably 0.5 to 20 mPa · s, and more preferably 0.5 to 10 mPa · s. The viscosity of the composition was measured at a temperature of 25 占 폚 by the method according to JIS K 6833-15.4.1 b) Method 2.
본 발명의 잠재 지문 검출용 조성물은, 상기 필수 성분을, 또는 상기 필수 성분과 다른 성분을 혼합함으로써 제조할 수 있다. 또한, 안정제를 사용하는 경우에는, 미리, 2-시아노아크릴레이트와의 혼합물로 해두는 것이 바람직하다. 또한, 조성물의 제조 시에, 예를 들어 형광 염료의 종류 등에 따라서, 원료의 혼합 방법(사용 방법 등)을 선택할 수 있는데, 모든 원료를 일괄 혼합해도 되고, 분할 혼합해도 된다.The composition for detecting potential fingerprints of the present invention can be produced by mixing the above essential ingredients, or the above essential ingredients and other ingredients. In the case of using a stabilizer, it is preferable to prepare a mixture with 2-cyanoacrylate in advance. In the production of the composition, for example, a method of mixing the raw materials (method of use, etc.) can be selected depending on the kind of the fluorescent dyes and the like.
본 발명의 잠재 지문 검출용 조성물에 의하면, 지문 지지 부재의 구성 재료의 종류에 한정되지 않고, 잠재 지문을 효율적으로 검출할 수 있다. 즉, 금속, 합금, 무기 화합물 등의 무기 재료, 수지 등의 유기 재료, 및 이들을 포함하는 복합 재료 중 어느 것을 포함하는 지문 지지 부재의 표면에 형성된 잠재 지문을 검출할 수 있다. 또한, 지문 지지 부재의 표면 형상에 대해서도 한정되지 않고, 종래, 공지된 잠재 지문 검출용 조성물에 의한 검출이 곤란했던, 예를 들어 벽돌, 콘크리트 블록, 플라스틱 소결 다공질체, 슬레이트, 나무, 종이 등의 다공질 부재, 티켓 등의 자성 종이 이면 등과 같이, 미세한 볼록부 및 오목부가 연속된 표면을 갖는 지문 지지 부재에 대하여 특히 바람직하다.According to the composition for detecting a potential fingerprint of the present invention, not only the kind of constituent material of the fingerprint supporting member, but also the potential fingerprint can be efficiently detected. That is, the potential fingerprint formed on the surface of the fingerprint supporting member including any of inorganic materials such as metals, alloys, inorganic compounds, organic materials such as resins, and composite materials containing them can be detected. The present invention is not limited to the surface shape of the fingerprint supporting member. For example, it is also possible to use a known method for detecting a potential fingerprint such as a brick, a concrete block, a plastic sintered porous body, a slate, A magnetic paper such as a porous member, a ticket or the like, and the like, the fine convex portion and the concave portion are particularly preferable for a fingerprint supporting member having a continuous surface.
상기한 바와 같이 2-시아노아크릴레이트의 중합에 의해 형성된 경화부는, 통상, 백색이기 때문에, 지문 지지 부재의 색에 따라서는, 그 색과 상이한 색으로 발광하는 형광 염료를 함유하는 잠재 지문 검출용 조성물을 사용하는 것이 바람직하다.As described above, since the cured portion formed by the polymerization of 2-cyanoacrylate is usually white, the cured portion of the latent fingerprint containing the fluorescent dye that emits light of a color different from the color of the fingerprint supporting member It is preferred to use a composition.
본 발명의 잠재 지문 검출용 조성물을 검체에 접촉시키면, 조성물은, 물, 지질을 갖는 잠재 지문에 흡착되고, 접촉과 동시 또는 건조 시에, 2-시아노아크릴레이트가 중합되어 잠재 지문의 표면에 백화부가 형성된다. 한편, 잠재 지문이 부재인 영역에는, 조성물이 흡착되지 않을뿐만 아니라, 침식 또는 변형을 야기하지 않는다. 따라서, 잠재 지문의 패턴을 효율적으로 검출할 수 있다. 광 조사에 의해 지문 지지 부재의 색과 상이한 색으로 발광하는 형광 염료를 함유하는 잠재 지문 검출용 조성물을 사용한 경우에는, 백화부에, 400 내지 800nm 범위의 파장을 갖는 광을 조사하여, 잠재 지문을 반영하는 발광 패턴을 얻을 수 있다.When the potential fingerprint detection composition of the present invention is contacted with a sample, the composition is adsorbed to a potential fingerprint having water, lipid, and upon simultaneous or dry contact, the 2-cyanoacrylate is polymerized to the surface of the potential fingerprint A whitening portion is formed. On the other hand, in the region where the potential fingerprint is absent, not only the composition is not adsorbed but also does not cause erosion or deformation. Therefore, the pattern of the potential fingerprint can be efficiently detected. When a composition for detecting potential fingerprints containing a fluorescent dye that emits light in a color different from the color of the fingerprint supporting member by light irradiation is used, light having a wavelength in the range of 400 to 800 nm is irradiated to the whitening portion, A light emission pattern to be reflected can be obtained.
본 발명의 잠재 지문 검출용 조성물을 검체에 접촉시키는 방법으로서는, 분무(분사), 침지에 의한 방법 등을 들 수 있다.Examples of the method of contacting the composition for potential fingerprint detection of the present invention with a specimen include a method of spraying and immersion.
본 발명에 있어서는, 잠재 지문의 검출 시에, 조성물의 사용량을 소량으로 할 수 있을 뿐 아니라, 대면적의 검체에 대하여 바람직하기 때문에, 분무에 의한 것이 바람직하다.In the present invention, when the potential fingerprint is detected, since the amount of the composition used can be small, and it is preferable for a large-sized specimen, it is preferable to use a spray.
조성물을 검체에 분무할 경우, 기계식 분무기, 전기식 분무기, 펌프식 스프레이, 트리거식 스프레이, 에어졸 등의 분무기를 사용할 수 있다. 또한, 검체의 동일 표면에 대한 분무 횟수는, 특별히 한정되지 않고, 2-시아노아크릴레이트의 분무량이 바람직하게는 0.000015 내지 0.003ml/cm2의 범위가 되는 것이면 된다. 또한, 1회당 분무량은, 바람직하게는 0.0005 내지 1ml/cm2, 보다 바람직하게는 0.001 내지 0.1ml/cm2이다.When the composition is sprayed onto a specimen, a sprayer such as a mechanical sprayer, an electric sprayer, a pump sprayer, a trigger sprayer, an aerosol or the like may be used. The number of spraying of the specimen on the same surface is not particularly limited, and the spray amount of 2-cyanoacrylate is preferably in the range of 0.000015 to 0.003 ml / cm 2 . In addition, the spray amount per dose is preferably 0.0005 to 1 ml / cm 2 , more preferably 0.001 to 0.1 ml / cm 2 .
또한, 검체를 조성물에 침지시킬 경우, 0℃ 내지 40℃의 조성물에 있어서 검체를 정지 상태로 하여, 0.1 내지 5분간 침지시키는 것이 바람직하다.When the specimen is immersed in the composition, it is preferable that the specimen is immobilized in the composition at 0 캜 to 40 캜 in a stationary state and immersed for 0.1 to 5 minutes.
실시예Example
이하, 본 발명을 실시예에 의해 구체적으로 설명한다. 단, 본 발명은, 하기 실시예에 한정되는 것은 아니다.Hereinafter, the present invention will be described in detail with reference to examples. However, the present invention is not limited to the following examples.
1. 잠재 지문 검출용 조성물의 원료1. Raw materials for composition for detecting potential fingerprints
잠재 지문 검출용 조성물의 제조에 사용한 원료는, 이하와 같다.The raw materials used for the preparation of the composition for detecting potential fingerprints are as follows.
1-1. 2-시아노아크릴레이트1-1. 2-cyanoacrylate
안정제로서, 아황산 가스 200질량ppm 및 히드로퀴논 600질량ppm을, 미리, 첨가한 에틸-2-시아노아크릴레이트(이하, 「에틸-2-시아노아크릴레이트 원료」라고 함)를 사용하였다.Ethyl 2-cyanoacrylate (hereinafter referred to as " ethyl-2-cyanoacrylate raw material ") to which 200 mass ppm of sulfur dioxide and 600 mass ppm of hydroquinone were previously added was used as the stabilizer.
1-2. 형광 염료1-2. Fluorescent dye
하기 2종의 제품을 정제 처리에 제공한 것을 사용하였다.The following two products were used for the purification treatment.
(1) 안트라퀴논계 염료(1) An anthraquinone dye
닛본 가야꾸사제 2-페녹시-1-아미노-4-히드록시안트라센-9,10-디온 「Kayaset Red B」(상품명)Phenoxy-1-amino-4-hydroxyanthracene-9,10-dione " Kayaset Red B " (trade name)
(2) 나프탈이미드계 염료(2) a naphthalimide-based dye
닛본 가야꾸사제 2-부틸-6-(부틸아미노)-1H-벤즈[de]이소퀴놀린-1,3(2H)-디온 「Kayaset Flavine FG」(상품명)(Butylamino) -1H-benz [de] isoquinoline-1,3 (2H) -dione Kayaset Flavine FG (trade name)
<정제 방법><Purification method>
형광 염료 5g을, 교반 하에 1질량％ 메탄술폰산의 메탄올 용액 50g에, 서서히 첨가하여, 첨가 완료 후, 추가로 5분간 교반을 계속하였다. 이어서, 여과 분별하여, 50℃에서 24시간 감압 건조시켰다.5 g of the fluorescent dye was gradually added to 50 g of a methanol solution of 1 mass% methanesulfonic acid under stirring, and after completion of the addition, stirring was further continued for 5 minutes. Then, the mixture was filtered and dried under reduced pressure at 50 DEG C for 24 hours.
1-3. 실리콘 오일1-3. Silicone oil
(1) 헥사메틸디실록산(1 기압에 있어서의 비점: 100℃)(1) Hexamethyldisiloxane (boiling point at 1 atm: 100 占 폚)
(2) 데카메틸테트라실록산(1 기압에 있어서의 비점: 194℃)(2) Decamethyltetrasiloxane (boiling point at 1 atm: 194 ° C)
(3) 데카메틸시클로펜타실록산(1 기압에 있어서의 비점: 210℃)(3) Decamethylcyclopentasiloxane (boiling point at 1 atm: 210 deg. C)
1-4. 안정제1-4. stabilizator
아황산 가스 및 히드로퀴논을 사용하였다.Sulfur dioxide gas and hydroquinone were used.
1-5.유기 용제1-5. Organic solvents
비교예를 위해, 실리콘 오일 대신에, 아세톤, 메틸에틸케톤, 벤젠, 헥산 또는 클로로포름을 사용하였다.For the comparative example, acetone, methyl ethyl ketone, benzene, hexane or chloroform was used instead of the silicone oil.
2. 잠재 지문 검출용 조성물의 제조 및 평가2. Preparation and evaluation of compositions for detecting potential fingerprints
상기 각 원료를 분할 혼합하여, 25℃에서 교반함으로써, 잠재 지문 검출용 조성물을 제조하였다. 얻어진 조성물의 점도를, JIS K 6833-15.4.1 b) 방법 2에 준하는 방법에 의해, 온도 25℃에서 측정하였다.Each of the raw materials was split and mixed and stirred at 25 캜 to prepare a composition for detecting potential fingerprints. The viscosity of the obtained composition was measured at a temperature of 25 占 폚 by a method according to JIS K 6833-15.4.1 b) Method 2.
그리고, 시판되고 있는 벽돌의 표면, 시판되고 있는 폴리에틸렌제 주머니의 표면, 및 자기 티켓의 이면(자기면)에, 손을 씻은 후의 손가락의 배 부분을 누른 것을 검체로 하여, 그 표면 전체에 조성물을 분무하고, 광 조사에 의해 잠재 지문의 검출이 가능한지 여부를 조사하였다.Then, a sample is pressed on the surface of a commercially available brick, a surface of a commercially available polyethylene bag, and a back surface (magnetic surface) of a magnetic ticket, Spraying, and whether or not the potential fingerprint can be detected by light irradiation was examined.
2-1. 벽돌 표면의 잠재 지문 검출2-1. Detecting potential fingerprint on brick surface
실시예 1Example 1
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 헥사메틸디실록산 96.3질량부와, 안트라퀴논계 염료 281.3×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, 96.3 parts by weight of hexamethyldisiloxane, anthraquinone dyes 281.3 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.65 mPa · s.
이어서, 얻어진 잠재 지문 검출용 조성물을, 그 표면에 잠재 지문을 갖는 벽돌(도 1)에 분무(분무량 0.01 내지 0.02ml/cm2)하였다. 이에 의해, 조성물이 손가락 끝 분비 성분에 접촉되면, 에틸-2-시아노아크릴레이트의 경화에 의한 백색화가 관찰되었다. 그 후, 분무한 조성물을 건조시켜, Horiba Scientific사제 보안 수사용 광원 장치 「CRIMESCOPE CS-16-500」(상품명)에 의해, 백색 고화부에 파장 415 내지 575nm의 광을 조사한 결과, 도 2에 도시한 바와 같이, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 1에 나타낸다.Subsequently, the obtained potential fingerprint detecting composition was sprayed (spray amount: 0.01 to 0.02 ml / cm 2 ) on a brick having a potential fingerprint on its surface (FIG. 1). Thus, when the composition was contacted with the fingertip-secretion component, whitening due to curing of ethyl-2-cyanoacrylate was observed. Thereafter, the sprayed composition was dried and irradiated with a light having a wavelength of 415 to 575 nm on a white solidified portion by a security water use light source device "CRIMESCOPE CS-16-500" (trade name) manufactured by Horiba Scientific, As can be seen, the bright luminescence of the potential fingerprint was observed. The results are shown in Table 1.
실시예 2Example 2
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 헥사메틸디실록산 94.5질량부와, 안트라퀴논계 염료 368.1×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 5.5 parts by mass of the raw material, 94.5 parts by weight of hexamethyldisiloxane, anthraquinone dyes 368.1 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.65 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, and clear light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 1.
실시예 3Example 3
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 헥사메틸디실록산 94.5질량부와, 안트라퀴논계 염료 36.8×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 5.5 parts by mass of the raw material, 94.5 parts by weight of hexamethyldisiloxane, anthraquinone dyes 36.8 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.65 mPa · s.
그 후, 실시예 1과 동일한 분무를 7회 행한 후, 광 조사함으로써, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 1에 나타내지만, 조성물의 분무를 복수회에 걸쳐 행한 후, 잠재 지문을 검출한 것으로부터, 판정을 「△」로 하였다.Thereafter, the same spray as in Example 1 was performed seven times, and then light irradiation was performed to observe clear luminescence of the potential fingerprint. These results are shown in Table 1, but since the potential fingerprints were detected after spraying the composition a plurality of times, the determination was " DELTA ".
실시예 4Example 4
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 옥타메틸트리실록산 96.3질량부와, 안트라퀴논계 염료 281.3×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 1.0mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, 96.3 parts by weight of octamethyltrisiloxane, anthraquinone dyes 281.3 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 1.0 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, and clear light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 1.
실시예 5Example 5
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 옥타메틸트리실록산 94.5질량부와, 안트라퀴논계 염료 368.1×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 1.0mPa·s였다.Ethyl-2-cyano-acrylate and 5.5 parts by mass of the raw material, 94.5 parts by weight of octamethyltrisiloxane, anthraquinone dyes 368.1 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 1.0 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, and clear light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 1.
실시예 6Example 6
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 데카메틸테트라실록산 94.5질량부와, 안트라퀴논계 염료 368.1×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 1.5mPa·s였다.Ethyl-2-cyano-acrylate and 5.5 parts by mass of the raw material, methyl deca-cyclotetrasiloxane 94.5 parts by weight, anthraquinone dyes 368.1 × 10 - homogeneous solution containing 6 weight parts of the obtained (for a latent fingerprint detection composition). The viscosity (25 ° C) was 1.5 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, and clear light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 1.
실시예 7Example 7
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 데카메틸시클로펜타실록산 94.5질량부와, 안트라퀴논계 염료 368.1×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 4.0mPa·s였다.Ethyl-2-cyano-acrylate and 5.5 parts by mass of the raw material, decamethylcyclopentasiloxane 94.5 parts by weight, anthraquinone dyes 368.1 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 4.0 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, and clear light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 1.
실시예 8Example 8
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 헥사메틸디실록산 96.3질량부와, 나프탈이미드계 염료 140.6×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, 96.3 parts by weight of hexamethyldisiloxane, naphthalimide dyes 140.6 × 10 - obtain a homogeneous solution (for latent fingerprint detection composition) comprising 6 parts by weight. The viscosity (25 ° C) was 0.65 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, and clear light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 1.
실시예 9Example 9
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 헥사메틸디실록산 94.5질량부와, 나프탈이미드계 염료 184.0×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 5.5 parts by mass of the raw material, 94.5 parts by weight of hexamethyldisiloxane, naphthalimide dyes 184.0 × 10 - obtain a homogeneous solution (for latent fingerprint detection composition) comprising 6 parts by weight. The viscosity (25 ° C) was 0.65 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, and clear light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 1.
실시예 10Example 10
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 헥사메틸디실록산 94.5질량부와, 나프탈이미드계 염료 18.4×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 5.5 parts by mass of the raw material, 94.5 parts by weight of hexamethyldisiloxane, naphthalimide dyes 18.4 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.65 mPa · s.
그 후, 실시예 1과 동일한 분무를 5회 행한 후, 광 조사함으로써, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 1에 나타내지만, 조성물의 분무를 복수회에 걸쳐 행한 후, 잠재 지문을 검출한 것으로부터, 판정을 「△」로 하였다.Thereafter, the same spray as in Example 1 was performed five times, and then light irradiation was carried out to observe clear luminescence of the potential fingerprint. These results are shown in Table 1, but since the potential fingerprints were detected after spraying the composition a plurality of times, the determination was " DELTA ".
실시예 11Example 11
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 옥타메틸트리실록산 96.3질량부와, 나프탈이미드계 염료 140.6×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 1.0mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, 96.3 parts by weight of octamethyltrisiloxane, naphthalimide dyes 140.6 × 10 - obtain a homogeneous solution (for latent fingerprint detection composition) comprising 6 parts by weight. The viscosity (25 ° C) was 1.0 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, and clear light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 1.
실시예 12Example 12
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 옥타메틸트리실록산 94.5질량부와, 나프탈이미드계 염료 184.0×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 1.0mPa·s였다.Ethyl-2-cyano-acrylate and 5.5 parts by mass of the raw material, 94.5 parts by weight of octamethyltrisiloxane, naphthalimide dyes 184.0 × 10 - obtain a homogeneous solution (for latent fingerprint detection composition) comprising 6 parts by weight. The viscosity (25 ° C) was 1.0 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, and clear light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 1.
비교예 1Comparative Example 1
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 아세톤 94.5질량부와, 안트라퀴논계 염료 368.1×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.34mPa·s였다.Ethyl-2-cyano-acrylate and 5.5 parts by mass of the raw material, and 94.5 parts by mass of acetone, anthraquinone dyes 368.1 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.34 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 발광이 관찰되지 않아, 잠재 지문을 검출할 수 없었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, no light emission was observed by light irradiation, and a potential fingerprint could not be detected. The results are shown in Table 1.
비교예 2Comparative Example 2
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 메틸에틸케톤 94.5질량부와, 안트라퀴논계 염료 368.1×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.4mPa·s였다.Ethyl-2-cyanoacrylate material 5.5 parts by weight of methyl ethyl ketone 94.5 parts by weight, anthraquinone dyes 368.1 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.4 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 발광이 관찰되지 않아, 잠재 지문을 검출할 수 없었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, no light emission was observed by light irradiation, and a potential fingerprint could not be detected. The results are shown in Table 1.
비교예 3Comparative Example 3
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 벤젠 94.5질량부와, 안트라퀴논계 염료 368.1×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyanoacrylate material 5.5 parts by weight benzene 94.5 parts by weight, anthraquinone dyes 368.1 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.65 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 발광이 관찰되지 않아, 잠재 지문을 검출할 수 없었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, no light emission was observed by light irradiation, and a potential fingerprint could not be detected. The results are shown in Table 1.
비교예 4Comparative Example 4
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 헥산 94.5질량부와, 안트라퀴논계 염료 368.1×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.33mPa·s였다.Ethyl-2-cyanoacrylate material 5.5 parts by weight hexane and 94.5 parts by weight, anthraquinone dyes 368.1 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 캜) was 0.33 mPa s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 발광이 관찰되지 않아, 잠재 지문을 검출할 수 없었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, no light emission was observed by light irradiation, and a potential fingerprint could not be detected. The results are shown in Table 1.
비교예 5Comparative Example 5
에틸-2-시아노아크릴레이트 원료 5.5질량부와, 클로로포름 94.5질량부와, 안트라퀴논계 염료 368.1×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.57mPa·s였다.Ethyl-2-cyano-acrylate and 5.5 parts by mass of the raw material, and 94.5 parts by mass of chloroform, anthraquinone dyes 368.1 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.57 mPa · s.
그 후, 실시예 1과 동일한 조작을 행하고, 광 조사에 의해, 발광이 관찰되지 않아, 잠재 지문을 검출할 수 없었다. 이들의 결과를 표 1에 나타낸다.Thereafter, the same operation as in Example 1 was performed, no light emission was observed by light irradiation, and a potential fingerprint could not be detected. The results are shown in Table 1.
2-2. 자기 티켓의 이면(자기면) 또는 폴리에틸렌제 주머니의 표면의 잠재 지문 검출2-2. Detection of potential fingerprints on the back surface (magnetic surface) of a magnetic ticket or on the surface of a polyethylene bag
실시예 13Example 13
에틸-2-시아노아크릴레이트 원료 2.3질량부와, 헥사메틸디실록산 97.7질량부와, 안트라퀴논계 염료 133.2×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 2.3 parts by mass of the raw material, 97.7 parts by weight of hexamethyldisiloxane, anthraquinone dyes 133.2 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.65 mPa · s.
이어서, 얻어진 잠재 지문 검출용 조성물을, 그 표면에 잠재 지문을 갖는 자기 티켓의 자기면(도 3) 및 폴리에틸렌제 주머니(도 5)의 표면에 분무(분무량 0.01 내지 0.02ml/cm2)하였다. 이에 의해, 조성물이 손가락 끝 분비 성분에 접촉되면, 에틸-2-시아노아크릴레이트의 경화에 의한 백색화가 관찰되었다. 그 후, 분무한 조성물을 건조시켜, Horiba Scientific사제 보안 수사용 광원 장치 「CRIME SCOPE CS-16-500」(상품명)에 의해, 백색 고화부에 파장 415 내지 575nm의 광을 조사한 결과, 도 4 및 도 6에 도시한 바와 같이, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 2에 나타낸다.Subsequently, the obtained potential fingerprint detecting composition was sprayed (spray amount: 0.01 to 0.02 ml / cm 2 ) on the magnetic surface (FIG. 3) and the polyethylene bag (FIG. 5) of the magnetic ticket having the potential fingerprint on its surface. Thus, when the composition was contacted with the fingertip-secretion component, whitening due to curing of ethyl-2-cyanoacrylate was observed. Thereafter, the sprayed composition was dried and irradiated with light having a wavelength of 415 to 575 nm to a white solidified portion by a security water use light source device "CRIME SCOPE CS-16-500" (trade name) manufactured by Horiba Scientific, As shown in Fig. 6, clear luminescence of the potential fingerprint can be observed. The results are shown in Table 2.
실시예 14Example 14
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 헥사메틸디실록산 96.3질량부와, 안트라퀴논계 염료 187.5×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, 96.3 parts by weight of hexamethyldisiloxane, anthraquinone dyes 187.5 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.65 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 2에 나타낸다.Thereafter, the same operation as in Example 13 was performed on a polyethylene bag having a potential fingerprint on its surface, and bright light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 2.
실시예 15Example 15
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 헥사메틸디실록산 96.3질량부와, 안트라퀴논계 염료 18.8×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, 96.3 parts by weight of hexamethyldisiloxane, anthraquinone dyes 18.8 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.65 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 분무를 3회 행한 후, 광 조사함으로써, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 2에 나타내지만, 조성물의 분무를 복수회에 걸쳐 행한 후, 잠재 지문을 검출한 것으로부터, 판정을 「△」로 하였다.Thereafter, clear luminescence of the potential fingerprint could be observed by irradiating the polyethylene bag having the potential fingerprint on its surface three times with the same spray as in Example 13, followed by light irradiation. These results are shown in Table 2, but since the potential fingerprints were detected after spraying the composition a plurality of times, the determination was " DELTA ".
실시예 16Example 16
에틸-2-시아노아크릴레이트 원료 2.3질량부와, 옥타메틸트리실록산 97.7질량부와, 안트라퀴논계 염료 133.2×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 1.0mPa·s였다.Ethyl-2-cyano-acrylate and 2.3 parts by mass of the raw material, 97.7 parts by weight of octamethyltrisiloxane, anthraquinone dyes 133.2 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 1.0 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 2에 나타낸다.Thereafter, the same operation as in Example 13 was performed on a polyethylene bag having a potential fingerprint on its surface, and bright light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 2.
실시예 17Example 17
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 옥타메틸트리실록산 96.3질량부와, 안트라퀴논계 염료 187.5×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 1.0mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, 96.3 parts by weight of octamethyltrisiloxane, anthraquinone dyes 187.5 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 1.0 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 2에 나타낸다.Thereafter, the same operation as in Example 13 was performed on a polyethylene bag having a potential fingerprint on its surface, and bright light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 2.
실시예 18Example 18
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 데카메틸테트라실록산 96.3질량부와, 안트라퀴논계 염료 187.5×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 1.5mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, methyl deca-cyclotetrasiloxane 96.3 parts by weight, anthraquinone dyes 187.5 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 1.5 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 2에 나타낸다.Thereafter, the same operation as in Example 13 was performed on a polyethylene bag having a potential fingerprint on its surface, and bright light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 2.
실시예 19Example 19
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 데카메틸시클로펜타실록산 96.3질량부와, 안트라퀴논계 염료 187.5×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 4.0mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, decamethylcyclopentasiloxane 96.3 parts by weight, anthraquinone dyes 187.5 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 4.0 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 2에 나타낸다.Thereafter, the same operation as in Example 13 was performed on a polyethylene bag having a potential fingerprint on its surface, and bright light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 2.
실시예 20Example 20
에틸-2-시아노아크릴레이트 원료 2.3질량부와, 헥사메틸디실록산 97.7질량부와, 나프탈이미드계 염료 66.6×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 2.3 parts by mass of the raw material, 97.7 parts by weight of hexamethyldisiloxane, naphthalimide dyes 66.6 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.65 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 2에 나타낸다.Thereafter, the same operation as in Example 13 was performed on a polyethylene bag having a potential fingerprint on its surface, and bright light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 2.
실시예 21Example 21
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 헥사메틸디실록산 96.3질량부와, 나프탈이미드계 염료 93.8×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, 96.3 parts by weight of hexamethyldisiloxane, naphthalimide dyes 93.8 × 10 - obtain a homogeneous solution (for latent fingerprint detection composition) comprising 6 parts by weight. The viscosity (25 ° C) was 0.65 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 2에 나타낸다.Thereafter, the same operation as in Example 13 was performed on a polyethylene bag having a potential fingerprint on its surface, and bright light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 2.
실시예 22Example 22
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 헥사메틸디실록산 96.3질량부와, 나프탈이미드계 염료 9.4×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, 96.3 parts by weight of hexamethyldisiloxane, naphthalimide-based dye 9.4 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.65 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 분무를 5회 행한 후, 광 조사함으로써, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 2에 나타내지만, 조성물의 분무를 복수회에 걸쳐 행한 후, 잠재 지문을 검출한 것으로부터, 판정을 「△」로 하였다.Thereafter, bright luminescence of the potential fingerprint could be observed by irradiating the polyethylene bag having the potential fingerprint on the surface thereof with the same spray as in Example 13 five times and irradiating it with light. These results are shown in Table 2, but since the potential fingerprints were detected after spraying the composition a plurality of times, the determination was " DELTA ".
실시예 23Example 23
에틸-2-시아노아크릴레이트 원료 2.3질량부와, 옥타메틸트리실록산 97.7질량부와, 나프탈이미드계 염료 66.6×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 1.0mPa·s였다.Ethyl-2-cyano-acrylate and 2.3 parts by mass of the raw material, 97.7 parts by weight of octamethyltrisiloxane, naphthalimide dyes 66.6 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 1.0 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 2에 나타낸다.Thereafter, the same operation as in Example 13 was performed on a polyethylene bag having a potential fingerprint on its surface, and bright light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 2.
실시예 24Example 24
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 옥타메틸트리실록산 96.3질량부와, 나프탈이미드계 염료 93.8×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 1.0mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, 96.3 parts by weight of octamethyltrisiloxane, naphthalimide dyes 93.8 × 10 - obtain a homogeneous solution (for latent fingerprint detection composition) comprising 6 parts by weight. The viscosity (25 ° C) was 1.0 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 조작을 행하고, 광 조사에 의해, 잠재 지문의 선명한 발광을 관찰할 수 있었다. 이들의 결과를 표 2에 나타낸다.Thereafter, the same operation as in Example 13 was performed on a polyethylene bag having a potential fingerprint on its surface, and bright light emission of the potential fingerprint could be observed by light irradiation. The results are shown in Table 2.
비교예 6Comparative Example 6
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 아세톤 96.3질량부와, 안트라퀴논계 염료 187.5×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.34mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, and 96.3 parts by mass of acetone, anthraquinone dyes 187.5 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.34 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 조작을 행하고, 광 조사에 의해, 발광이 관찰되지 않아, 잠재 지문을 검출할 수 없었다. 이들의 결과를 표 2에 나타낸다.Thereafter, a polyethylene bag having a potential fingerprint on its surface was subjected to the same operation as in Example 13, and no light emission was observed by light irradiation, and the potential fingerprint could not be detected. The results are shown in Table 2.
비교예 7Comparative Example 7
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 메틸에틸케톤 96.3질량부와, 안트라퀴논계 염료 187.5×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.4mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, methyl ethyl ketone, 96.3 parts by weight, anthraquinone dyes 187.5 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 ° C) was 0.4 mPa · s.
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 조작을 행하고, 광 조사에 의해, 발광이 관찰되지 않아, 잠재 지문을 검출할 수 없었다. 이들의 결과를 표 2에 나타낸다.Thereafter, a polyethylene bag having a potential fingerprint on its surface was subjected to the same operation as in Example 13, and no light emission was observed by light irradiation, and the potential fingerprint could not be detected. The results are shown in Table 2.
비교예 8Comparative Example 8
에틸-2-시아노아크릴레이트 원료 3.7질량부와, 벤젠 96.3질량부와, 안트라퀴논계 염료 187.5×10- 6질량부를 포함하는 균일 용액(잠재 지문 검출용 조성물)을 얻었다. 점도(25℃)는 0.65mPa·s였다.Ethyl-2-cyano-acrylate and 3.7 parts by mass of the raw material, 96.3 parts by weight of benzene, anthraquinone dyes 187.5 × 10 - homogeneous solution containing 6 parts by weight to obtain a (for latent fingerprint detection composition). The viscosity (25 캜) was 0.65 mPa..
그 후, 그 표면에 잠재 지문을 갖는 폴리에틸렌제 주머니에 대하여, 실시예 13과 동일한 조작을 행하고, 광 조사에 의해, 발광이 관찰되지 않아, 잠재 지문을 검출할 수 없었다. 이들의 결과를 표 2에 나타낸다.Thereafter, a polyethylene bag having a potential fingerprint on its surface was subjected to the same operation as in Example 13, and no light emission was observed by light irradiation, and the potential fingerprint could not be detected. The results are shown in Table 2.
본 발명에 따르면, 검체의 표면에 잠재 지문 검출용 조성물을 접촉시킨 후, 광 조사함으로써, 잠재 지문을 정확하게 검출할 수 있다. 특히, 잠재 지문이, 표면에 볼록부 또는 오목부를 갖는 지문 지지 부재에 있어서의 볼록부의 표면에 형성되어 있는 경우에는, 종래, 공지된 조성물에서는 검출이 곤란했던 것에 비해, 본 발명의 조성물에서는, 잠재 지문의 침식(소실) 또는 변형이 억제되어, 그 개형(槪形)이 유지되므로, 검출을 효율적으로 행할 수 있다. 따라서, 감식 분야에 있어서, 넓은 검체에 대하여 바람직하다.According to the present invention, potential fingerprints can be accurately detected by irradiating a surface of a specimen with a composition for detecting a potential fingerprint, followed by light irradiation. Particularly, in the case where the potential fingerprint is formed on the surface of the convex portion in the fingerprint supporting member having the convex portion or the concave portion on the surface, it is difficult to detect in the known composition, The erosion (loss) or deformation of the fingerprint is suppressed, and the shape of the fingerprint is maintained, so that the detection can be performed efficiently. Therefore, it is preferable for a wide range of samples in the field of identification.
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| PCT/JP2016/071699 WO2017018373A1 (en) | 2015-07-29 | 2016-07-25 | Composition for detecting latent fingerprint |
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| EP (1) | EP3329846B1 (en) |
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| US4477607A (en) * | 1983-08-31 | 1984-10-16 | Loctite Corporation | Thixotropic cyanoacrylate compositions |
| JPS61288836A (en) * | 1985-06-17 | 1986-12-19 | 田岡化学工業株式会社 | Detection of fingerprint |
| US4837260A (en) * | 1986-05-23 | 1989-06-06 | Toagosei Chemical Industry Co., Ltd. | Cyanoacrylate compositions |
| JPS63108010A (en) * | 1986-05-23 | 1988-05-12 | Toagosei Chem Ind Co Ltd | Cyanoacrylate composition |
| JPH0689067B2 (en) * | 1987-05-07 | 1994-11-09 | 東亞合成化学工業株式会社 | Cyanoacrylate composition |
| JPH0415004A (en) * | 1990-05-07 | 1992-01-20 | Matsushita Electric Ind Co Ltd | Hair drier |
| JPH0415044A (en) * | 1990-05-09 | 1992-01-20 | Badlands Trust Org | Method for labeling object for verification |
| JPH06165771A (en) * | 1992-09-10 | 1994-06-14 | Toagosei Chem Ind Co Ltd | Fingerprint detecting liquid and method for detecting fingerprint |
| IL109155A0 (en) * | 1993-05-11 | 1994-06-24 | Minnesota Mining & Mfg | Fluorescent dye/cyanoacrylate compositions useful in latent fingerprint development kit |
| US5902443A (en) * | 1997-01-28 | 1999-05-11 | Toagosei America, Inc. | Method for bonding with cyanoacrylate adhesive |
| US6183593B1 (en) * | 1999-12-23 | 2001-02-06 | Closure Medical Corporation | 1,1-disubstituted ethylene adhesive compositions containing polydimethylsiloxane |
| JP5567270B2 (en) * | 2005-08-17 | 2014-08-06 | ロチャル インダストリーズ エルエルピー | Liquid coating materials and kits |
| JP5051134B2 (en) * | 2006-10-06 | 2012-10-17 | 東亞合成株式会社 | Fingerprint detection polymer, method for producing the same, fingerprint detection composition, and fingerprint detection method using the same |
| JP5346631B2 (en) * | 2009-03-16 | 2013-11-20 | 株式会社スカイサイエンス | Fingerprint detection method |
| WO2014065142A1 (en) * | 2012-10-25 | 2014-05-01 | アース製薬株式会社 | Latent fingerprint detection method, thermal evaporation device for latent fingerprint detection, latent fingerprint detection device and composition for latent fingerprint detection |
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